Base of a battery-powered portable blender



FIG. 1 is a top-left perspective view of a base of a battery-powered portable blender showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof; and,

FIG. 6 is a top view thereof.

The portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a base of a battery-powered portable blender, as shown and described. 